Plaiting-machine



(No Model.)

G. C. EMMONS. PLAITING MACHINE.

Patented Dec. 16, 1890.

, Q jnmuenlm-ie xfii mwnmumu Illllllllllllllfl a l 1 x I II WITNESSESATTORNEYS UNITED STAT S PATENT @rrrcn,

CHARLES C. EMMONS, OF PIl"SBURG, PENNSYLVANIA.

PLAlTlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 442,872, dated December16, 1890.

Application filed June 26, 1890. Serial No 356,685. (No model.)

To all whom it may concern.-

Be it known that 1, CHARLES C. EMMONS, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Plaiter- Blades for Sewing-Machines; and I dohereby declare the following to'be a full, clear, and exact descriptionof the invention, such as will enable others skilled in the art to whichit pertains to make and use it, reference being had to the accompanyingdrawings, which form partof this specification.

My invention relates to an improvement in plaiting apparatus forsewing-machines; and it consists in the construction and arrangement ofparts, which will be more fully described hereinafter.

The object of my invention is to so construct a plaiter-blade for sewingmachines of all classes that the forward end of the blade is given anoscillating or vibratory motion at the extreme forward movement of theblade and at the sametime allow alongitudinal adjustment thereof and theamount of oscillating movement which is given to the forward end of theblade to be adjusted at will.

Figure 1 is a top plan view of my plaiterblades and the mechanism forreciprocating them. Fig. 2 is an enlarged top plan view of one of theblades alone. Fig. 3 is a vertical section of Fig. l.

The mechanism here shown for reciprocating the plaiter-blades is similarto that shown in Patent No. 432,215, granted February 25, 1890, to C. M.I-Iine, and which consists of a horizontal shaft A, carrying two cams Band a ratchet-wheel C, which is acted upon by a pivoted spring-actuatedpawl D, to which pawl is pivotally connected a connecting-rod E, theopposite end of which is loosely connected with the sewing mechanism,and by which the pawl is operated in the manner shown in the saidpatent. I here show the ratchet-wheel connected to one end of the shaftinstead of between the two cams, as shown in the patentabove referredto. This, however, forms no part of my invention, and may be secured tothe shaft in any desired relation to the cams.

Moving 0r sliding in suitable standards F F, which rise from the machinebed-plate, are the plaiter-blade rods G, to which the pivoted at theirupper ends in suitable sup ports and are engaged by the cams upon theshaft as the shaft is made to revolve. Through the medium of thismechanism just described, all of which is substantially the same asshown in the patent herein referred to, the rods G are reciprocated andcarry the plaiter-blades back and forth with them. The standard F andthe adjacent cam B are both longitudinally adjustable upon the shaft A,thus regulating the distance between the mechanism supported by thestandard F farther from or nearer to the standard F and the mechanismsupported thereby, so as to accommodate the machine to operate upondifferent widths of material.

My improvement relates to the construction of the plaiterblades, which,instead of being attached directly to the hangers H, as shown in thesaid patent, are connected attheir outer ends to the inner end of alever or lateral arm L, which is pivoted between its ends at anysuitable point to the hangers by means of .a pivotal bolt or screw M.The opposite end of this lever, from which the plaiter-blades areconnected, extends outward beyond the socket of the hanger any desireddistance, and is engaged by a suitable spring N, which has its oppositeend connected to the hanger. By means of this spring the plaiter-bladesare normally held at right angles to the shaftA or parallel to eachother, as shown in solid lines in the drawings.

Passing into the standards F and F are the adjustable screws P, withwhich the outer ends of the levers L engage when the plaiter-blades havemoved inward to the extreme limit of their inward movement. This screw P(or other suitable stop) is made adjustable in relation to the movementof the levers L, for the purpose hereinafter described.

When the plaiter-blades are forced inward by means of the cams and thelevers J and reach the extreme of their inward movement,

the outer ends of the levers L engage the adjustable stops P, whichcauses the levers L to oscillate or vibrate, thus throwing thei-nnerends of the plaiter-blades from eachother, as

shown in dotted lines in Fig. 2. This oscillating movement of'the innerends of the plaiter-blades draw the material tight and smoothbetween thetwo stitching mechanisms, and which, by smoothing the material andcausing it to travel in a direct line without becoming folded, loose, orflabby between the two stitching mechanisms, hold the plaits and assistvery materially in their formation. By giving the inner ends of theplaiter-blades this oscillating movement the plaits of the material,while being sewed to a stiff backing, are held firmly in their place anddrawn tight between the two lines of stitchin g. The steps P being madeadjustable, the oscillation of the inner end of the blade can beincreased or diminished at the pleasure of the operator or in accordancewith the quality of the goods being operated upon. Vhen the blades areforced forward in forming the plaits, they move in a direct straightline, and the setserews or adjustable stops P are so adjusted that justas the needle descends the blades stretch the goods by their oscillatingmovement, and immediately. after the needle rises the blades resumetheir original position by means of the spring N and return in a directline backward ready to be again forced directly forward for the purposeof forming another plait.

Having thus described my invention, I claim-- 1. The combination, with asewing-machine, of a reciprocating pivoted plaiter-blade having alateral projection upon one side of its pivotal point and a stop uponthe machine near the limit of the inner movement of the blade and in thepath traveled by'the said lateral projection, whereby the blade is givena lateral movement at its inner end at the end of its innerreciprocating movement, substantially as shown and described.

2. The combination, with a sewing-machine having a stop, of a pivotedplaiter-bl-ade having a lateral projection which engages the stop and aspring for returning the blade to position,substantially as described.

3. The combination, with a sewing-machine having a stop, of aplaiter-blade having a laterally-extending arm which is provided with abearing between its ends, and a spring which engages thesaidarm,substantiallyasspecified.

at. The eombination,with a sewing-machine having a stop, of aplaiter-blade hanger, a plaiter-blade pivoted thereto, having alaterally-extending arm which engages the said stop, and a spring whichhas one end engaging the hanger and its opposite end engaging the saidarm, substantially as described.

5. The combination, with a sewing-machine having two stitchingmechanisms, of apla'iterblade hanger for each mechanism, a plaitee bladepivoted to each hapgeie each blade having an arm which extendstherefrom, and an adj ustable'stop for each arm, which is secured to themachine in theline traveled by the outer ends of the arms, whereby theinner ends of the planer-blades are given any desired amount of lateralmovement, substam tially as shown;

6. The combination, with a sewing-machine having an adjustable stop, ofa pivoted plait er-blade having a laterally extending arm which engagesthe adjustable stop, wherebythe inner end of the blade is given alateral movement, and means for returning the blade to its firstposition substantially as shown.

In testimony whereof I aflix my signature in presence of two witnesses.I

CI-IAS. C. EMM'ONS.

\Vitnesses:

H. C. AVERY,

W. T. MASON.

